Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea
Shu, Yeqiang1,2; Xue, Huijie1,2; Wang, Dongxiao1; Chai, Fei2; Xie, Qiang3; Cai, Shuqun1; Chen, Rongyu1; Chen, Ju1; Li, Jian1; He, Yunkai1
2016-04-14
发表期刊SCIENTIFIC REPORTS
卷号6
摘要Energetic fluctuations with periods of 9-14 days below a depth of 1400 m were observed in the southern South China Sea (SCS) from 5 years of direct measurements. We interpreted such fluctuations as topographic Rossby waves (TRWs) because they obey the dispersion relation. The TRWs persisted from May 24, 2009 to August 23, 2013, and their bottom current speed with a maximum of similar to 10 cm/s was one order of magnitude greater than the mean current and comparable to the tidal currents near the bottom. The bottom-trapped TRWs had an approximate trapping depth of 325 m and reference wavelength of similar to 82 km, which were likely excited by eddies above. Upper layer current speed that peaked approximately every 2 months could offer the energy sources for the persistent TRWs in the southern SCS. Energetic bottom-trapped TRWs may have a comparable role in deep circulation to tides in areas with complex topography.
文章类型Article
WOS标题词Science & Technology
DOI10.1038/srep24338
收录类别SCI
语种英语
关键词[WOS]GULF-OF-MEXICO ; DEEP CURRENTS ; EDDIES ; VARIABILITY ; SIMULATION
WOS类目Multidisciplinary Sciences
WOS记录号WOS:000374036000001
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被引频次:6[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.idsse.ac.cn/handle/183446/1566
专题深海科学研究部_海洋环流观测与数值模拟研究室
作者单位1.Chinese Acad Sci, South China Sea Inst Oceanol, State Key Lab Trop Oceanog, Guangzhou, Guangdong, Peoples R China
2.Univ Maine, Sch Marine Sci, Orono, ME USA
3.Chinese Acad Sci, Sanya Inst Deep Sea Sci & Engn, Sanya, Peoples R China
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Shu, Yeqiang,Xue, Huijie,Wang, Dongxiao,et al. Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea[J]. SCIENTIFIC REPORTS,2016,6.
APA Shu, Yeqiang.,Xue, Huijie.,Wang, Dongxiao.,Chai, Fei.,Xie, Qiang.,...&He, Yunkai.(2016).Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea.SCIENTIFIC REPORTS,6.
MLA Shu, Yeqiang,et al."Persistent and energetic bottom-trapped topographic Rossby waves observed in the southern South China Sea".SCIENTIFIC REPORTS 6(2016).
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